Making the most of classroom projection in 2017 means using their interactive capabilities, and not just treating them as new versions of overhead projectors.
That’s the opinion of Brian Nadel, a contributor to AVNetwork.com. In a post entitled “Making the Most of the Classroom Projector,” he said, “The old adage ‘show not tell’ is key.” He goes on to provide a few examples, including the University of Colorado, where science simulations show the movement of glaciers.
You can click here to read Nadel’s original post, which concentrates on the projector, software, and related technology. The one area he doesn’t discuss is the projection screen.
Taking full advantage of an interactive projector’s features requires a screen built for the purpose. Classrooms used for interactive projection often have regular whiteboards, but they aren’t a good solution. Their high gloss level creates problems with glare, hotspotting, and possible interference with interactive functions of the projector.
Even if you aren’t using interactive projection, screen choice is important. Since the lights often need to stay on in most classrooms to allow note-taking, an ambient light rejection screen should be considered. The best of these screens are typically darker grey, which helps with image contrast, but they are more angular reflective than diffusive. Reflective components in the vinyl surface reflect off-axis ambient light away at the same angle as it is hitting the surface, essentially bouncing it away from the audience.
There is a caveat here. Materials that are the most ambient light rejecting are so reflective that you can sometimes see hot spotting. They also typically have narrow viewing cones. The best choice is an ambient light rejecting material with a good balance of angular reflectance and diffusion.
Choose a large enough display that everyone can read the content—and understand. A recent study commissioned by projector manufacturer Epson shows just how true that is—and finds the bar is higher than many might have thought. The study found that nearly 60% of students couldn’t see content on a 70-inch diagonal display in a standard classroom. For more on the link between display size and understanding content, click here.
Consider all of your projection options to make full use of projection in the classroom. To get help, click here to find the Draper expert for your area.
